Transferring rig weights from one mesh to another in blender 2.76
Im using 2.79, they did change it after 2.76. Heres how it works now. Once you have parented the desired mesh to the rig with empty groups. You have to select first the weighted mesh and then the desired mesh for the transfer. Then go into weight paint mode. Then change the following two settings, source layers and destination layers. Source layers needs to be set to "By Name". Destination needs to be set to "All Layers". Once these two settings are changed the transfer will automatically occur.